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sortix--sortix/sortix/memorymanagement.cpp
Jonas 'Sortie' Termansen 2ce76e3876 Refactor system call API.
2013-12-17 14:30:26 +01:00

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/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013.
This file is part of Sortix.
Sortix is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along with
Sortix. If not, see <http://www.gnu.org/licenses/>.
memorymanagement.cpp
Functions that allow modification of virtual memory.
*******************************************************************************/
#include <sortix/kernel/platform.h>
#include <sortix/kernel/memorymanagement.h>
#include <sortix/kernel/syscall.h>
namespace Sortix {
namespace Memory {
static int sys_memstat(size_t* memused, size_t* memtotal)
{
size_t used;
size_t total;
Statistics(&used, &total);
// TODO: Check if legal user-space buffers!
if ( memused )
*memused = used;
if ( memtotal )
*memtotal = total;
return 0;
}
void InitCPU(multiboot_info_t* bootinfo);
void Init(multiboot_info_t* bootinfo)
{
InitCPU(bootinfo);
Syscall::Register(SYSCALL_MEMSTAT, (void*) sys_memstat);
}
} // namespace Memory
} // namespace Sortix